Jump to content

15 Sierra HD mirror swap

atjohnson7662
 Share

Recommended Posts

atjohnson7662 New Member

atjohnson7662

Posted
Posted

I purchased a Sierra hd Denali that came factory with standard mirrors and I want to convert to tow mirrors. With all of the factory power fold, power adjust and puddle lights already being there, is there an aftermarket option that is ready to go? What mirrors are must having luck with? I will also be upgrading the factory nav to CarPlay but first things first. 

newdude Senior Enthusiast

newdude

Posted
Posted

All depends on the build date of your 2015.  Check the driver's door jamb for the silver label with your VIN on it.  You should see a date in MM/YY format.  This is important for having all of the lighting work. 

 

Either route you will need new door harnesses or modify your existing ones.   

 

You can go the OE route on the mirrors but you are looking at $1100-1400 for just the mirrors.  

 

You can get full feature from Boost Auto Parts 2015 - 2019 New Style GM Tow Mirrors – Boost Auto Parts

 

With either of them you will lose the puddle lamps (the ones that point down on the ground) as the tow mirrors didn't have them 2015-2019.  

pgamboa Senior Enthusiast

pgamboa

Posted
Posted

No mirror will be PnP. You’ll need to modify your door or swap them out. I validate each customer truck and mirror prior to provisioning a solution. You can reach me at HarnessDR.com


Sent from my iPhone using Tapatalk

atjohnson7662 New Member

atjohnson7662

Posted
  • Author
Posted

Thanks for the info guys. Once I make my mirror choice, I will be in touch. I'll also update with photos here. 

knegangard Enthusiast

knegangard

Posted
Posted

I have a brand new set of OEM factory take off tow mirrors from my 2016 2500HD Denali with the factory wiring harness. They were taken off my truck when new in order to install the standard mirrors. Using the factory wiring harness, they were a direct swap on my 2016. You might verify that there were no changes to the mirror harness between the 15-16 model years, but please reach out if interested. They have been boxed up in storage since new. 

atjohnson7662 New Member

atjohnson7662

Posted
  • Author
Posted

knegangard, I have an aftermarket set picked out but I am definitely interested in yours since I have not made a purchase. I was going to shoot you a DM but it will not let me do so, but let me know what you would want and your location and/or shipping.  

knegangard Enthusiast

knegangard

Posted
Posted
59 minutes ago, atjohnson7662 said:

knegangard, I have an aftermarket set picked out but I am definitely interested in yours since I have not made a purchase. I was going to shoot you a DM but it will not let me do so, but let me know what you would want and your location and/or shipping.  

I sent you a message, thank you.

atjohnson7662 New Member

atjohnson7662

Posted
  • Author
Posted

Well I got lucky and the seller found a set of factory mirrors and all of the OE harnesses that he had purchased to do the install and never got around to it. I ended up getting a good price on everything and will soon be doing the install. Once done I’ll have a set of DL3 mirrors and the factory door harnesses for sale. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,760
    Total Members
    8,960
    Most Online
    MASONV88888888
    Newest Member
    MASONV88888888
    Joined

  • Who's Online   1 Member, 0 Anonymous, 1,399 Guests (See full list)

  • Latest Articles

  • Posts

    • MASONV88888888
      Another 6.2L engine failure!

      By MASONV88888888 · Posted

      My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 
    • MASONV88888888
      Rattle in the rear!

      By MASONV88888888 · Posted

      Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.   I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window. To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.   I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.   I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.   Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.
    • Buckwild27
      Gas Prices

      By Buckwild27 · Posted

      I have 2 choices. 
    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      Do you have access to BP fuels? Some stations have Silver 91 E-0 priced the same as their 93 E-10.  There is a local Marathon with 90 alky free for $6 a gallon but I go down the road to BP for $5-ish. They also have a 100 E-0 but that stuff is $10 a pop. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...